This outfit is all types of wrong!

Steven Tyler went for a stroll through Beverly Hills yesterday, and the Aerosmith front man looked like a walking fashion fail! From the embroidered mom jeans to the Tiva sandals, this aging rocker got it all wrong! On top of it all, why is the former American Idol judge wearing a tank top that shows off side boob?!

The 64-year-old musician just performed with his band at the I Heart Radio music festival in Las Vegas, where he and his band mates dished to reporters about their upcoming album, which will debut this November.

"We put our ideas together where it was like, 'What if we write this song, a song for what they're going to listen to in the shuttle in 20 years from now going to Mars? What kind of song would they want to hear?" he revealed of their inspiration for their first record in eight years.

Let's hope if we run into Steven Tyler on Mars in the future he won't be wearing an ensemble like this!

Rihanna has released another infectious tune called "Diamonds" ... and we love it!

The 24-year-old songstress Tweeted: “Palms rise to the Universe! #Diamonds WORLD PREMIERE ..."

Rihanna's mature-sounding single, produced by Stargate with Benny Blanco and written by Aussie songwriter Sia, is sure to be a hit!

Rock on, RiRi!

Kristin Chenoweth isn't letting her neck injury get in the way of grabbing an afternoon treat.

The blonde beauty, who suffered a neck injury while on set of The Good Wife, was all smiles while stopping at Yogurt Stop in West Hollywood with her adorable dog.

After getting home, Chenoweth Tweeted, "Hi twitters. Im so happy to be done with my day and relaxing. #sickoftheneckbrace"

Keep your head (and neck) up, Kristin!

Nick, Joe and Kevin Jonas dined at BOA in West Hollywood last night, and the boys celebrated the birthday of their keyboardist/bass player Ryan Liestman, who turned 30 on Tuesday. Joe tweeted a photo of the boys making smoochy faces and wrote, "With the Birthday boy. @ryanliestman #duckface #peace #myspace #2006." Seems a little girly, but whatevs!

Aww, but what's with making Nick ride in the back? He is the youngest one, but he's also the most famous!

Another day in the life!

A makeup-free Kim Kardashian popped into a Beverly Hills nail salon yesterday to get her weekly mani-pedi, and the reality star hid her bare face under huge sunglasses. Even a glamour girl like Kim K has to give her skin a break from the usual pounds of foundation every once and while!

Apparently the Keeping Up with the Kardashians star isn't bothered by her boyfriend Kanye West's rumored sex tapes. "All of the Kardashians love Kanye and they have told him that they don't care that the report about his sex tape came out," a source revealed, adding, "Kris and both Khloe and Kourtney told Kanye that this isn't anything to worry about, and since they dealt with Kim's tape it is no big deal. They all joked that Kanye has a type."

Umm... we guess there's nothing like a raunchy porn vid to bring this family closer!

Lady Gaga is wearing just her undies to promote her new campaign "A Body Revolution."

The "Born This Way" singer posted the above photos on her Little Monsters website and revealed that she's been struggling with "bulimia and anorexia since I was 15."

Gaga said she started the campaign "to inspire bravery and breed some motherf**king compassion."

As Madonna would say ... "Strike a pose (in your yellow underwear), there's nothing to it..."

Robsten fans rejoice!

Robert Pattinson has moved back in with Kristen Stewart following a brief separation after it was revealed she cheated on him with her Snow White and the Huntsman director Rupert Sanders.

"They are living together and have reconciled," a source dished to Us Weekly.

Reports surfaced last week that the Twilight lovers "had a dramatic makeup," but the British hunk has not completely forgotten the On the Road actress' infidelity, as the source adds that he "is extra sensitive right now. He's insecure."

Although the couple previously shared a house in Los Feliz, KStew just purchased a $5 million Malibu beach pad, so we wonder where they will rebuild their love nest?

Let's hope RPatz realizes once a cheater, always a cheater!

Hot hookup alert!

Chris Brown and Nicole Scherzinger got a little kissy-kissy last night at Supperclub as surprised fans looked on ...

A source inside the club tells X17online.com exclusively:

"They were dancing close for a while and being all touchy-feely and finally Chris leaned into her. She put her head on his shoulder and they started kissing! I couldn't believe Chris was being so obvious about it!"

Chris Brown has been dating model Karrueche Tran since late 2011. Last week, however, Tran Tweeted "the end." The couple were rumored to have split in July but X17 photographer the two together as recently as Sept 16.

Nicole split with her longtime love Formula One racer Lewis Hamilton late last year but has been seen with him multiple times since. She's been linked to her Dancing With the Stars partner Derek Hough, her former X Factor US co-host Steve Jones, rapper Drake and others.

We have a feeling Rihanna might wanna get herself back to LA asap ...